After graduating from the superhero academy, Melvin Beederman heads for Los Angeles, where he unexpectedly teams up with Candace Brinkwater, school play actress, to nab the evil McNasty Brothers.
As Melvin and Candace continue their crime-fighting work as superheroes, the McNasty Brothers, the McNasty Sisters, and the school bullies all plot to get even with them.
When the star of The Grateful Fred receives threatening letters, he calls on Melvin, the superhero in charge of Los Angeles, and his assistant, Candace, to stop the criminal and his henchmen before they destroy Fred's reputation.